1. The short fibres that cling to cottonseeds after the first ginning
   "Linters are often used in the production of paper and plastics"

1. Machine for removing short fibres that cling to cottonseeds after the first ginning
   "The cotton mill used a linter to process the seeds after the initial ginning"
    
2. (computer programming) a tool that analyses source code to flag logic errors, inconsistencies, stylistic errors, suspicious and deprecated constructs, etc.
   "a linter activates automatically every time you open a JavaScript file and reports detected errors and warnings in the editor";
   - lint

Encyclopedia: Linter, Belgium